Pixel arrangement structure, organic light emitting diode display panel, display device and mask plate assembly

ABSTRACT

A pixel arrangement structure, an organic light emitting diode display panel, a display device, and a mask plate assembly are disclosed. The pixel arrangement structure includes a plurality of first sub-pixels, a plurality of second sub-pixels, a plurality of third sub-pixels. The positions of the sub-pixels do not overlap each other. One of the first sub-pixels is located at the center position of a first virtual rectangle. Four of the first sub-pixels are located at four vertex angle positions of the first virtual rectangle, respectively. Four of the second sub-pixels are located at the center positions of four sides of the first virtual rectangle, respectively. The first virtual rectangle is divided into four second virtual rectangles. The inside of each of the four second virtual rectangles comprises one third sub-pixel of the third sub-pixels.

CROSS-REFERENCE TO RELATED APPLICATION

The present disclosure is a continuation of U.S. patent application Ser.No. 16/477,515 filed Jul. 11, 2019, entitled “PIXEL ARRANGEMENTSTRUCTURE, ORGANIC LIGHT EMITTING DIODE DISPLAY PANEL, DISPLAY DEVICEAND MASK PLATE ASSEMBLY”, which is a national phase application under 35U.S.C. § 371 of International Application No. PCT/CN2018/121464 filedDec. 17, 2018, which claims the benefit of and priority to ChinesePatent Application No. 201810002818.5 filed Jan. 2, 2018, the contentsof each of which being incorporated by reference in their entiretiesherein.

TECHNICAL FIELD

The present disclosure relates to the field of display technologies and,in particular, to a pixel arrangement structure, an organic lightemitting diode display panel, a high precision metal mask plateassembly, and a display device.

BACKGROUND

Organic Light Emitting Diode (OLED) display technology is one of thehotspots in the research field of the flat panel displays today.Compared with a liquid crystal display, an OLED display can provide lowpower consumption, low production cost, self-illumination, wide viewingangle, and fast response. At present, OLED displays have begun toreplace the traditional liquid crystal display (LCD) in the field offlat panel displays, such as those in mobile phones, PDAs, digitalcameras, and the like.

The structure of an OLED display generally includes a base substrate aswell as sub-pixels that are manufactured on the base substrate andarranged in a matrix. Among them, each sub-pixel generally forms anorganic light emitting diode structure at a corresponding sub-pixelposition on the array substrate through an organic material penetratinga high precision metal mask plate by evaporation film formationtechnology.

However, in current OLED displays, the sub-pixel opening area in thepixel arrangement structure is smaller. As such, it is necessary toincrease the drive current to satisfy the brightness requirement of thedisplay. However, OLED displays operating under a large drive currenteasily lead to an increase of the aging speed of the display, therebyshortening the lifetime of the OLED display.

BRIEF SUMMARY

According to one aspect of the present disclosure, a pixel arrangementstructure is provided in the arrangement of the present disclosure. Thepixel arrangement structure includes a plurality of first sub-pixels, aplurality of second sub-pixels, and a plurality of third sub-pixels. Thepositions of the all above sub-pixels are not overlapped with eachother. One of the plurality of first sub-pixels is located at the centerposition of a first virtual rectangle, and four of the plurality offirst sub-pixels are located at four vertex angle positions of the firstvirtual rectangle respectively. Four of the plurality of secondsub-pixels are located at the center positions of four sides of thefirst virtual rectangle, respectively. The first virtual rectangle isdivided into four second virtual rectangles, and the inside of each ofthe four second virtual rectangles each comprises one third sub-pixel ofthe plurality of third sub-pixels.

In one arrangement of the present disclosure, the second virtualrectangle is formed by sequentially connecting four vertex angles, andthe four vertex angles comprise two second sub-pixels and two firstsub-pixels. The two second sub-pixels are located at the centerpositions of two adjacent sides of the first virtual rectangle. Each ofthe two first sub-pixels is adjacent to each of the two secondsub-pixels. One of the two first sub-pixels is located at the centerposition of the first virtual rectangle, and the other is located at avertex angle position of the first virtual rectangle.

In one arrangement of the present disclosure, each of the plurality ofthird sub-pixels is in a long strip shape. The extension direction ofthe long strip shape is a direction which is away from the center of thefirst virtual rectangle.

In one arrangement of the present disclosure, the extension direction ofeach third sub-pixel inside of the four second virtual rectangles isdifferent. The extension direction of each third sub-pixel inside of thefour second virtual rectangles is a direction which is away from thefirst sub-pixel located at the center of the first virtual rectangle andextending in the corresponding second virtual rectangle.

In one arrangement of the present disclosure, the long strip shape is amirror symmetrical view in the direction perpendicular to the extensiondirection thereof. In one arrangement of the present disclosure, theextension directions of the third sub-pixels in the two second virtualrectangles which disposed along a diagonal of the first virtualrectangle are consistent.

The first virtual rectangle is provided with a first diagonal line and asecond diagonal line. The third sub-pixels in the two second virtualrectangles which disposed along the first diagonal line are extended ina direction along the first diagonal line. The third sub-pixels in thetwo second virtual rectangles which disposed along the second diagonalline are extended in a direction along the second diagonal line.

The third sub-pixels in the two second virtual rectangles which disposedalong the first diagonal line are mirror symmetry with respect to thesecond diagonal line. The third sub-pixels in the two second virtualrectangles which disposed along the second diagonal line are mirrorsymmetry with respect to the first diagonal line.

In one arrangement of the present disclosure, there is a first ratiobetween the minimum distance which is between the opposite sides of thethird sub-pixel and the adjacent first sub-pixel, and the minimumdistance which is between the opposite sides of the third sub-pixel andthe adjacent second sub-pixel. There is a second ratio between theminimum distance which is between the opposite sides of the thirdsub-pixel and the adjacent first sub-pixel, and the minimum distancewhich is between the opposite sides of the first sub-pixel and theadjacent second sub-pixel. There is a third ratio between the minimumdistance which is between the opposite sides of the third sub-pixel andthe adjacent second sub-pixel, and the minimum distance which is betweenthe opposite sides of the first sub-pixel and the adjacent secondsub-pixel. The first ratio, the second ratio and the third ratio areeach in the range of 0.8-1.2.

In one arrangement of the present disclosure, the first ratio, thesecond ratio, and the third ratio are equal.

the ratio of the maximum distance between the opposite sides of thethird sub-pixel and the adjacent first sub-pixel to the minimum distancebetween the opposite sides of the third sub-pixel and the adjacent firstsub-pixel is in a range of 1˜1.5. The ratio of the maximum distancebetween the opposite sides of the third sub-pixel and the adjacentsecond sub-pixel to the minimum distance between the opposite sides ofthe third sub-pixel and the adjacent second sub-pixel is in a range of1˜1.5.

In one arrangement of the present disclosure, the first ratio, thesecond ratio, and the third ratio are each equal to 1.

In one arrangement of the present disclosure, the opposite sides of thethird sub-pixel and the adjacent first sub-pixels are parallel to eachother. The opposite sides of the third sub-pixel and the adjacent secondsub-pixels are parallel to each other.

In one arrangement of the present disclosure, the shape of the firstsub-pixel is a substantial cruciform. Each inner angle of the firstsub-pixel is greater than or equal to 90 degrees. The cruciform is ashape formed by concave of the middle of four sides of a quadrilateral.The four vertex angles of the quadrilateral are as four ends of thecruciform respectively. The quadrilateral is a substantial rhombus or asubstantial square.

In one arrangement of the present disclosure, two ends of the long stripshape are circular arcs or polygons that protrude outward from theinterior of the long strip shape.

In one arrangement of the present disclosure, at least one of the shapeof the second sub-pixel and the first sub-pixel is a substantialrectangle.

In one arrangement of the present disclosure, the first sub-pixel is ared sub-pixel; the second sub-pixel is a blue sub-pixel; the thirdsub-pixel is a green sub-pixel. The area of the blue sub-pixel is largerthan the area of the red sub-pixel and the area of the green sub-pixel,respectively. In some examples, the area of the blue sub-pixel is largerthan the area of the red sub-pixel; the area of the red sub-pixel islarger than the area of the green sub-pixel. In some examples, the areaof the blue sub-pixel is larger than the area of the green sub-pixel;the area of the green sub-pixel is larger than the area of the redsub-pixel.

In one arrangement of the present disclosure, the center of the thirdsub-pixel of each second virtual rectangle is located at theintersection of the line connecting of the centers of the adjacent twofirst sub-pixels of the corresponding second virtual rectangle and theline connecting of the centers of the adjacent two second sub-pixels ofthe corresponding second virtual rectangle.

In one arrangement of the present disclosure, the area of each thirdsub-pixel is the same, and the shape of each third sub-pixel isconsistent. The area of each first sub-pixel is the same, and the shapeof each first sub-pixel is consistent. The area of each second sub-pixelis the same, and the shape of each second sub-pixel is consistent.

In one arrangement of the present disclosure, the area of each thirdsub-pixel is the same, and the shape of each third sub-pixel isconsistent. The area of each first sub-pixel is the same, and the shapeof each first sub-pixel is consistent. Or, the area of each secondsub-pixel is the same, and the shape of each second sub-pixel isconsistent.

According to another aspect of the present disclosure, an organic lightemitting diode display panel is provided. In the arrangement, theorganic light emitting diode display panel includes the plurality ofabove-mentioned pixel arrangement structures. The adjacent first virtualrectangles are configured to share the sub-pixels on respective facingside in the row direction and the column direction.

According to another aspect of the present disclosure, a display deviceis provided. The display device includes the above-mentioned organiclight emitting diode display panel.

According to another aspect of the present disclosure, a mask plateassembly is provided. The mask plate assembly is used to manufacture theabove-mentioned pixel arrangement structure. The mask plate assemblyincludes

a first mask plate, having a plurality of first open regions, the firstopen region is configured to correspond with the shape and position ofthe first sub-pixel. The mask plate assembly includes a second maskplate having a plurality of second open regions. The second open regionis configured to correspond with the shape and position of the secondsub-pixel. The mask plate assembly includes a third mask plate having aplurality of third open regions. The third open region is configured tocorrespond with the shape and position of the third sub-pixel.

A pixel arrangement structure, an organic light emitting diode displaypanel, a mask plate assembly and a display device are provided in thearrangement of the present disclosure. In an arrangement, in the pixelarrangement structure, the first sub-pixels are located at the centerposition of the first virtual rectangle and the positions of four vertexangles of the first virtual rectangle; the second sub-pixel is locatedat the center position of the side of the first virtual rectangle; andthe third sub-pixel is located in the second virtual rectangle. Thesecond virtual rectangle is sequentially connected by two secondsub-pixels and two first sub-pixels, the two second sub-pixels and thetwo first sub-pixels are as vertex angles, the two second sub-pixels arelocated at the center positions of the adjacent two sides of the firstvirtual rectangle, and the two first sub-pixels are adjacent to the twosecond sub-pixels and respectively located at the center position of thefirst virtual rectangle and at a vertex angle position of the firstvirtual rectangle. And four second virtual rectangles are constituted afirst virtual rectangle. Compared with the pixel arrangement structureof the related art, such pixel arrangement manner can make the firstsub-pixel, the second sub-pixel and the third sub-pixel closely arrangedunder the same process condition. Thereby under the condition that theminimum sub-pixel interval is satisfied, the area of the singlesub-pixel is increased as much as possible, thereby reducing the drivecurrent of the display means and increasing the lifetime of the displaymeans.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a first schematic view of the pixel arrangement structureprovided in the arrangement of the present disclosure;

FIG. 2 is a second schematic view of the pixel arrangement structureprovided in the arrangement of the present disclosure;

FIG. 3 is a third schematic view of the pixel arrangement structureprovided in the arrangement of the present disclosure;

FIG. 4 is a fourth schematic view of the pixel arrangement structureprovided in the arrangement of the present disclosure;

FIG. 5 is a fifth schematic view of the pixel arrangement structureprovided in the arrangement of the present disclosure;

FIG. 6 is a sixth schematic view of the pixel arrangement structureprovided in the arrangement of the present disclosure;

FIG. 7 is a seventh schematic view of the pixel arrangement structureprovided in the arrangement of the present disclosure;

FIG. 8 is a schematic view of the shape matching of a second sub-pixeland a third sub-pixel in a pixel arrangement structure provided in thearrangement of the present disclosure; and

FIG. 9 is a structure schematic view of an organic light emitting diodedisplay panel provided in the arrangement of the present disclosure.

FIG. 10 is a structure schematic view the first mask plate of the maskplate assembly provided in the arrangement of the present disclosure.

FIG. 11 is a structure schematic view the second mask plate of the maskplate assembly provided in the arrangement of the present disclosure.

FIG. 12 is a structure schematic view the third mask plate of the maskplate assembly provided in the arrangement of the present disclosure.

DETAILED DESCRIPTION

In order to make the present disclosure more clear, the presentdisclosure will be further described in detail below in conjunction withthe accompanying drawings. Understandably, the described arrangementsare only a part of the arrangements of the present disclosure, and arenot all the arrangements. Based on the arrangement of the presentdisclosure, all the other arrangements obtained by those skilled in theart without making inventive efforts are all within the protection scopeof the present disclosure.

The shape and size of each component in the accompanying drawings do notreflect the true proportion. The purpose is merely to schematicallyillustrate the content of the present disclosure.

A pixel arrangement structure is provided in the arrangement of thepresent disclosure. As shown in FIG. 1, the pixel arrangement structureincludes a plurality of first sub-pixels 01, a plurality of secondsub-pixels 02, and a plurality of third sub-pixels 03. The positions ofthe above all sub-pixels are not overlapped with each other;

One of the plurality of first sub-pixels 01 is located at the centerposition of a first virtual rectangle, and four of the plurality offirst sub-pixels 01 are located at four vertex angle positions of thefirst virtual rectangle respectively;

Four of the plurality of second sub-pixels 02 are located at the centerpositions of four sides of the first virtual rectangle respectively;

The first virtual rectangle is divided into four second virtualrectangles, and the inside of each of the four second virtual rectangleseach includes one third sub-pixel 03 of the plurality of thirdsub-pixels 03.

It should be understood that the center position and the vertex angleposition mentioned in the present disclosure are approximate positions,and not limited to the center point or the vertex. The existence ofcertain deviation is allowed, and only the area of the correspondingsub-pixels should cover the center point or the vertex.

Compared with the pixel arrangement structure of the related art, thepixel arrangement structure provided by the arrangement of the presentdisclosure can make the first sub-pixel 01, the second sub-pixel 02, andthe third sub-pixel 03 be closely arranged under the same processconditions. Therefore, under the condition that the minimum sub-pixelinterval is satisfied, the area of the single sub-pixel is increased asmuch as possible, thereby reducing the drive current of the displaymeans and increasing the lifetime of the display means.

In the arrangement of the present disclosure, the second virtualrectangle is formed by sequentially connecting the four vertex angles,and the four vertex angles include two second sub-pixels 02 and twofirst sub-pixels 01. The two second sub-pixels 02 are located at centerpositions of two adjacent sides of the first virtual rectangle. Each ofthe two first sub-pixels 01 is adjacent to each of the two secondsub-pixels 02, and one of the two first sub-pixels 01 is located at thecenter position of the first virtual rectangle and the other is locatedat a vertex angle position of the first virtual rectangle.

In the arrangement of the present disclosure, each of the thirdsub-pixels 03 is in a long strip shape, and the extension direction ofthe long strip shape is a direction which is away from the center of thefirst virtual rectangle.

In an arrangement, the extension direction of each third sub-pixel 03inside of the four second virtual rectangles is different. In thepresent arrangement, the extension direction of each third sub-pixel 03inside of the four second virtual rectangles is a direction which isaway from the first sub-pixel 01 located at the center of the firstvirtual rectangle and extending in the corresponding second virtualrectangle.

The long strip shape is a mirror symmetrical view in the directionperpendicular to the extension direction thereof.

Arranging the third sub-pixel 03 in a long strip shape is beneficial toenlarge the area of the second sub-pixel 02, thereby the sub-pixel withlow luminous efficiency in the display panel can be set as the secondsub-pixel 02. In addition, the two ends of the long strip aresymmetrically designed, which can reduce the pattern complexity of theevaporation mask plate, thereby simplifying the pattern compositionprocess.

It should be noted that, in the pixel arrangement structure provided inthe arrangement of the present disclosure, the mentioned sub-pixellocating at a certain position is referred to a position scope of thesub-pixel locating, and just make sure the sub-pixel overlap with theposition. In particularly arrangement, the center of the sub-pixel maybe overlapped with the position. Of course, the center of the sub-pixelmay be not overlapped with the position. That is, a deviation is existedbetween the center of the sub-pixel and the position, which is notlimited herein. Moreover, the center of the sub-pixel may be thegeometric center of the sub-pixel pattern, and may also be the center ofthe emitting color of the sub-pixel, which is not limited herein.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, inorder to ensure that each sub-pixel can be evenly distributed, thecenter of each sub-pixel is made as close as possible to thecorresponding position.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 7, the extension directions of the thirdsub-pixels 03 in the two second virtual rectangles which disposed alonga diagonal of the first virtual rectangle are consistent.

In an arrangement, the first virtual rectangle is provided with a firstdiagonal line L1 and a second diagonal line L2. The third sub-pixels 03in the two second virtual rectangles which disposed along the firstdiagonal line L1 are extended in the direction along the first diagonalline L1. The third sub-pixels 03 in the two second virtual rectangleswhich disposed along the second diagonal line L2 are extended in thedirection along the second diagonal line L2.

In an arrangement, the third sub-pixels 03 in the two second virtualrectangles which disposed along the first diagonal line L1 are mirrorsymmetry with respect to the second diagonal line L2. The thirdsub-pixels 03 in the two second virtual rectangles which disposed alongthe second diagonal line L2 are mirror symmetry with respect to thefirst diagonal line L1.

The third sub-pixels 03 in the four second virtual rectanglesconstituting the first virtual rectangle are distributed in an “X”shape. That is, both ends of each third the third sub-pixel 03 arerespectively pointed to the first sub-pixels 01 located at the twovertex angle positions of the second virtual rectangle in which thethird sub-pixels 03 located.

It should be noted that, the first virtual rectangle mentioned in thedisplay arrangement structure provided by the arrangement of the presentdisclosure is the largest dotted frame in FIG. 1, and the second virtualrectangle is a small dotted frame in FIG. 1. In FIG. 1, the firstvirtual rectangle includes four second virtual rectangles. The firstvirtual rectangle and the second virtual rectangle may be rectangular,may also be square, which is not limited herein.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, thefirst sub-pixel is a red sub-pixel, and the second sub-pixel is a bluesub-pixel. Or, the first sub-pixel is a blue sub-pixel, and the secondsub-pixel is a red sub-pixel. The third sub-pixel is a green sub-pixel.Thus as shown in FIG. 2, the green sub-pixel G located at the inside ofthe second virtual rectangle may constitute a luminous pixel point withthe red sub-pixel R and the blue sub-pixel B located at any two adjacentvertex angles of the second virtual rectangle.

Further, since the luminous efficiency of the blue sub-pixel is lower,and the lifetime of the blue sub-pixel is shorter, in some arrangementsof the present disclosure, in the pixel arrangement structure shown inFIG. 2, the first sub-pixel 01 is a red sub-pixel R, the secondsub-pixel 02 is a blue sub-pixel B, and the third sub-pixel 03 is agreen sub-pixel G. Thus the green sub-pixel G with strip shape canexpand the area of the blue sub-pixel B toward the direction of thegreen sub-pixel G. Thereby, the area of the blue sub-pixel B is largerthan the area of the red sub-pixel R and the area of the green sub-pixelG, respectively.

In an arrangement, the area of the blue sub-pixel B is larger than thearea of the red sub-pixel R, and the area of the red sub-pixel R islarger than the area of the green sub-pixel G. In another arrangement,the area of the blue sub-pixel B is larger than the area of the greensub-pixel G, and the area of the green sub-pixel G is larger than thearea of the red sub-pixel R.

Further, in the pixel arrangement structure provided in the arrangementof the present disclosure, since the luminous efficiency of the greensub-pixel is generally higher, the area of the green sub-pixel may beset to be smaller than the area of the red sub-pixel. Of course, in thespecific implementation, the area of the green sub-pixel may also be thesame as the area of the red sub-pixel, which is not limited herein.

It should be noted that the above-mentioned “area of the sub-pixel” andsize thereof are aimed at sub-pixels area included in a first virtualrectangle. Since the sub-pixels on the sides and vertex angle of thefirst virtual rectangle are all shared with the adjacent first virtualrectangle, the area ratio of the pixels in one first virtual rectangleis different from the area ratio of the pixels in the overall panel.

For the overall panel, the total area ratio of the RGB sub-pixels maybe, for example, 1: (1.1˜1.5):(1.2˜1.7). Further, the total area ratioof the RGB sub-pixels may be 1: (1.2˜1.35):(1.4˜1.55). Further, thetotal area ratio of the RGB sub-pixels may be 1:1.27:1.46. The totalnumber ratio of RGB sub-pixels is 1:2:1.

In one arrangement of the present disclosure, in the above-mentionedpixel arrangement structure provided in the arrangement of the presentdisclosure, there is a first ratio between the minimum distance D1 whichis between the opposite sides of the third sub-pixel 03 and the adjacentfirst sub-pixel 01, and the minimum distance D2 which is between theopposite sides of the third sub-pixel 03 and the adjacent secondsub-pixel 02. There is a second ratio between the minimum distance D1which is between the opposite sides of the third sub-pixel 03 and theadjacent first sub-pixel 01 and the minimum distance D3 which is betweenthe opposite sides of the first sub-pixel 01 and the adjacent secondsub-pixel 02. And there is a third ratio between the minimum distance D2which is between the opposite sides of the third sub-pixel 03 and theadjacent second sub-pixel 02, and the minimum distance D3 which isbetween the opposite sides of the first sub-pixel 01 and the adjacentsecond sub-pixel 02. The first ratio, the second ratio, and the thirdratio are all in the range of 0.8-1.2, such as 0.9, 1, 1.1.

In one arrangement of the present disclosure, two or three among thefirst ratio, the second ratio and the third ratio are equal.

In one arrangement of the present disclosure, each first sub-pixel, eachsecond sub-pixel, and each third sub-pixel are arranged substantiallyequidistantly with respect to each other.

As shown in FIG. 1, the minimum distance refers to the shortest distancebetween the opposite sides. The opposite sides may be straight lines orcurved lines, and the opposite sides are parallelizable.

In other words, the minimum distance needs to be greater than or equalto the process limit distance, and the minimum distance between theopposite sides of the third sub-pixel 03 and the adjacent secondsub-pixel 02 needs to be greater than or equal to the process limitdistance to satisfy the process requirements.

In one arrangement of the present disclosure, in the above-mentionedpixel arrangement structure provided by the arrangement of the presentdisclosure, the ratio of a maximum distance between the opposite sidesof the third sub-pixel 03 and the adjacent first sub-pixel 01 to aminimum distance between the opposite sides of the third sub-pixel andthe adjacent first sub-pixel is in a range of 1˜1.5, for example, 1.1,1.2, 1.3, 1.4, etc.

In one arrangement of the present disclosure, in the above-mentionedpixel arrangement structure provided by the arrangement of the presentdisclosure, the ratio of a maximum distance between the opposite sidesof the third sub-pixel 03 and the adjacent second sub-pixel 02 to aminimum distance between the opposite sides of the third sub-pixel andthe adjacent second sub-pixel is in a range of 1˜1.5, for example, 1.1,1.2, 1.3, 1.4, etc.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, inorder to enable the third sub-pixel 03 to be evenly distributed in thepixel arrangement structure to reduce the spacing between the thirdsub-pixel 03 and the adjacent first sub-pixel 01, and to reduce thespacing between the third sub-pixel 03 and the adjacent second sub-pixel02, as shown in FIG. 2 to FIG. 7, the center of the third sub-pixel 03of each second virtual rectangle is located at the intersection of theline connecting of the centers of the adjacent two first sub-pixels 01and the line connecting of the centers of the adjacent two secondsub-pixels 02 of the corresponding second virtual rectangle, that is,located at the center of the second virtual rectangle.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, inorder to ensure that the gap width between the third sub-pixel 03 andthe adjacent first sub-pixel 01 is consistent to reduce the spacingbetween the third sub-pixel 03 and the adjacent first sub-pixel 01, asshown in FIG. 1 to FIG. 7, the opposite sides of the third sub-pixel 03and the adjacent first sub-pixels 01 are parallel to each other. Ofcourse, in the specific implementation, the opposite sides of the thirdsub-pixel 03 and the adjacent first sub-pixel 01 may also be notparallel, which is not limited herein.

It should be noted that, in the pixel arrangement structure provided inthe arrangement of the present disclosure, the shape of the sub-pixel isreferred to a shape with the existence of certain process fluctuationsand errors. For a high-resolution display panel, since the sub-pixelitself has a smaller area, a method commonly used in the art can beadopted for the correction or compensation of the mask plate pattern toobtain a precise sub-pixel pattern.

In the specific implementation, the inner angle of the sub-pixel shapeis larger, or closer to the circular arc, the easier it is to realizeduring evaporating. Therefore, in one arrangement of the presentdisclosure, in the pixel arrangement structure provided in thearrangement of the present disclosure, as shown in FIG. 1, FIG. 3 toFIG. 5, the two ends of the long strip shape are circular arc shape thatprotrudes outward from the interior of the long strip shape; Or as shownin FIG. 6 to FIG. 8, both ends of the long strip are polygons, forexample, isosceles trapezoid of FIG. 6 to FIG. 8. Of course, in thespecific implementation, the shape of the long strip may also berectangle as shown in FIG. 2, which is not limited herein.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 3, the shape of the first sub-pixel 01 is asubstantial rectangle. Of course, other regular patterns or irregularpatterns may also be used, which is not limited herein.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 4 to FIG. 8, the shape of the first sub-pixel 01 is asubstantial cruciform. Thus the first sub-pixel 01 and the thirdsub-pixel can be closely arranged, and color mixing can be avoided onthe basis of ensuring the sub-pixel area.

Specifically, in the pixel arrangement structure provided in thearrangement of the present disclosure, as shown in FIG. 8, the cruciformis a shape formed by the concave of the middle of the four sides of thequadrilateral, and the four vertex angles of the quadrilateral are asfour ends of the cruciform respectively, among them, the quadrilateralis a substantial diamond shape or a substantial square. The specificconcave depth and shape are matched with the two ends of the long stripof the third sub-pixel 03 with long strip shape.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 4 to FIG. 7, each inner angle of the first sub-pixel 01 isgreater than or equal to 90 degrees. The larger each inner angle of thefirst sub-pixel 01, the easier to realize evaporating. On the contrary,if the inner angle of the sub-pixel is smaller, it needs to makecompensation for the mask plate pattern for preparing a sub-pixel shapewith a smaller inner angle. Therefore, the pattern complexity of themask plate can be reduced by making the inner angle of the firstsub-pixel 01 greater than or equal to 90 degrees.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 5 and FIG. 7, the four vertex angles of the substantialrhombus or the substantial square are rounded corners. That is, the fourends of the cruciform are all rounded corners or all circular arc shape.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, inorder to ensure that the gap width between the third sub-pixel 03 andthe adjacent second sub-pixel 02 is consistent to reduce the spacingbetween the third sub-pixel 03 and the adjacent second sub-pixel 02. Asshown in FIG. 1 to FIG. 7, the opposite sides of the third sub-pixel 03and the adjacent second sub-pixel 02 are parallel to each other.

Specifically, in the pixel arrangement structure provided in thearrangement of the present disclosure, since the third sub-pixel 03 isin a long strip shape, and the opposite sides of the third sub-pixel 03and the adjacent second sub-pixel 02 are parallel to each other, settingthe opposite sides of the third sub-pixel 03 and the adjacent secondsub-pixel 02 to be straight line shape can simplify the patterncomplexity of the mask plate as much as possible. Therefore, in onearrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 7, the shape of the second sub-pixel 02 is asubstantial rectangle.

In one implementation, the opposite sides of the third sub-pixel 03 andthe adjacent second sub-pixel 02 may also be not parallel, which is notlimited herein.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, theminimum spacing between the third sub-pixel 03 and the first sub-pixel01 is equal to the minimum spacing between the third sub-pixel 03 andthe second sub-pixel 02.

Moreover, the minimum spacing is generally the process limit distance,and the numerical range of the minimum spacing is generally related tothe used manufacturing process. When a fine metal mask plate (FMM)matched with the etching process is adopted to form the sub-pixel shape,the minimum spacing is about 16 μm, and the minimum spacing will besmaller when a laser or electroforming process is adopted to form thesub-pixel shape.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, theminimum spacing between the any adjacent two first sub-pixel 01 and thesecond sub-pixel 02 is equal.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 7, the area of each third sub-pixel 03 is thesame, thereby ensuring that in any luminous pixel point composed by thefirst sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03,the luminous area of the third sub-pixel 03 is all the same.

Of course, in the specific implementation, in the pixel arrangementstructure provided in the arrangement of the present disclosure, theareas of at least two third sub-pixels 03 may also be not same, which isnot limited herein.

During the manufacturing process, in order to ensure that the maskpattern can be consistent for the same kind of sub-pixel, therebycapable of simplifying the pattern composition process, in onearrangement of the present disclosure, in the pixel arrangementstructure shown in FIG. 1 to FIG. 7, the shape of each third sub-pixel03 is consistent.

Of course, in the specific implementation, in the pixel arrangementprovided by the arrangement of the present disclosure, the shapes of atleast two third sub-pixels may also be not consistent, which is notlimited herein.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 7, the area of each second sub-pixel 02 is thesame, thereby ensuring that in any luminous pixel point composed by thefirst sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03,the luminous area of the second sub-pixel 02 is all the same.

Of course, in the specific implementation, in the pixel arrangementstructure provided in the arrangement of the present disclosure, theareas of at least two second sub-pixels 02 may also be not the same,which is not limited herein.

During the manufacturing process, in order to ensure that the maskpattern can be consistent for the same kind of sub-pixel, therebycapable of simplifying the pattern composition process, in onearrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 7, the shape of each second sub-pixel 02 isconsistent.

Of course, in the specific implementation, in the pixel arrangementstructure provided in the arrangement of the present disclosure, theshape of at least two second sub-pixels 02 may also be not consistent,which is not limited herein.

Moreover, in one arrangement of the present disclosure, in theabove-mentioned pixel arrangement provided by the arrangement of thepresent disclosure, when the shapes of the four second sub-pixels 02 ina first virtual rectangle are the same or similar, the arrangementangles thereof may be the same, and the arrangement angles thereof mayalso be rotated arbitrarily, which is not limited herein.

In one arrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 7, the area of each first sub-pixel 01 is thesame, thereby ensuring that in any luminous pixel point composed by thefirst sub-pixel 01, the second sub-pixel 02 and the third sub-pixel 03,the luminous area of the first sub-pixel 01 is all the same.

In the specific implementation, in the pixel arrangement structureprovided in the arrangement of the present disclosure, the areas of atleast two first sub-pixels 01 may also not be the same, which is notlimited herein.

During the manufacturing process, in order to ensure that the maskpattern can be consistent for the same kind of sub-pixel, therebycapable of simplifying the pattern composition process, in onearrangement of the present disclosure, in the pixel arrangementstructure provided in the arrangement of the present disclosure, asshown in FIG. 1 to FIG. 7, the shape of each first sub-pixel 01 isconsistent.

In the specific implementation, in the pixel arrangement structureprovided in the arrangement of the present disclosure, the shapes of atleast two first sub-pixels may also be not consistent, which is notlimited herein.

Moreover, in one arrangement of the present disclosure, in theabove-mentioned pixel arrangement structure provided by the arrangementof the present disclosure, when the shapes of the five first sub-pixels01 in a first virtual rectangle are the same or similar, the arrangementangles thereof may be the same, and the arrangement angles thereof mayalso be rotated arbitrarily, which is not limited herein.

In one arrangement of the present disclosure, the specific shapes,position relationships, parallel and angle relationships of the secondsub-pixel 02, the first sub-pixel 01 and the third sub-pixel 03 can bedesigned as needed. In the actual process, due to the limitation of theprocess conditions or other factors, there may also be some deviation.Therefore, the shape, position and relative position relationship ofeach sub-pixel only needs to substantially satisfy the above-mentionedconditions, which all belong to the pixel arrangement structure providedby the arrangement of the present disclosure.

It should be noted that, the pattern inconformity of the sub-pixelsmentioned in the arrangement of the present disclosure are referred tothe shapes inconformity of the sub-pixels, for example, one is a circleand one is a rectangle. On the contrary, the pattern conformity of thesub-pixels mentioned in the arrangement of the present disclosure arereferred to the shape similarity or identity of the sub-pixels. Forexample, the shapes of the two sub-pixels are both triangles, regardlessof whether the areas are equal or not, then the shapes of the twosub-pixels is considered to be consistent.

Based on the same disclosed conception, an organic light emitting diodedisplay panel is further provided in the arrangement of the presentdisclosure, as shown in FIG. 9, the display panel includes a pluralityof closely arranged pixel arrangement structures (taking four pixelarrangement structures as an example in FIG. 9). The pixel arrangementstructure may be any one kind of the above-mentioned pixel arrangementstructures provided by the arrangement of the present disclosure. Theadjacent first virtual rectangles are configured to share the sub-pixelon respective facing sides in the row direction and the columndirection. That is, the first sub-pixel 01 and the second sub-pixel 02located on the sides of the adjacent first virtual rectangles are sharedby the adjacent two pixel arrangement structures. For example, threesub-pixels circled by each ellipse in FIG. 9 are sub-pixels shared bytwo adjacent pixel arrangement structures. Since the principle ofsolving the problem by the organic light emitting diode display panel issimilar to the foregoing pixel arrangement structure, the implementationof the organic light emitting diode display panel can be referred to theimplementation of the foregoing pixel arrangement structure, and thereis no more repeated detailed description.

Specifically, the organic light emitting diode display panel is providedin the arrangement of the present disclosure, as shown in FIG. 9, thefirst sub-pixel 01 and the second sub-pixel 02 are alternately arrangedin the row direction, and the first sub-pixel 01 and the secondsub-pixel 02 are alternately arranged in the column direction, and thethird sub-pixel 03 is located in the second virtual rectangle surroundedby two first sub-pixels 01 and two second sub-pixels 02. Thus, whendisplaying, any adjacent two first sub-pixel 01 and second sub-pixel 02can constitute a luminescent pixel point with a third sub-pixel 03adjacent thereto. Among the sub-pixels, a high-resolution display effectis achieved from a physical resolution with low-resolution by the lendcolor principle.

Based on the same disclosed conception, a display device is furtherprovided in the arrangement of the present disclosure, the displaydevice includes any one kind above-mentioned organic light emittingdiode display panel provided in the arrangement of the presentdisclosure. The display device can be any product or component with adisplay function, such as a mobile phone, a tablet computer, atelevision, a displayer, a notebook computer, a digital photo frame, anavigator, etc. The implementation of the display device can be referredto the arrangement of the foregoing display panel, and there is no morerepeated detailed description.

Based on the same disclosed conception, a mask plate assembly is furtherprovided by the arrangement of the present disclosure, such as a highprecision metal mask plate, which is used for manufacturing theabove-mentioned any one kind pixel arrangement structure provided by thearrangement of the present disclosure. As shown in FIG. 10 to FIG. 12,the mask plate assembly includes a first mask plate 100, a second maskplate 200 and a third mask plate 300. The first mask plate 100 has aplurality of first open regions 101, as shown in FIG. 10, and the firstopen regions 101 are corresponding to the shape and position of thefirst sub-pixel 01. The second mask plate 200 has a plurality of secondopen regions 201, as shown in FIG. 11, and the second open regions 201are corresponding to the shape and position of the second sub-pixel 02.The third mask plate 300 has a plurality of third open regions 301, asshown in FIG. 12, and the third open regions 301 are corresponding tothe shape and position of the third sub-pixel 03. Since the principle ofsolving the problem by the mask plate is similar to the foregoing pixelarrangement structure, thus the implementation of the mask plate can bereferred to the implementation of the foregoing pixel arrangementstructure, and there is no more repeated detailed description.

The above-mentioned pixel arrangement structure, organic light emittingdiode display panel, mask plate, and display device are provided in thearrangement of the present disclosure. In an arrangement, in the pixelarrangement structure, the first sub-pixels are located at the centerposition of the first virtual rectangle and the positions of four vertexangles of the first virtual rectangle; the second sub-pixels are locatedat the center position of the sides of the first virtual rectangle; andthe third sub-pixel is located in the second virtual rectangle. Thesecond virtual rectangle are sequentially connected by two secondsub-pixels and two first sub-pixels, the two second sub-pixels and thetwo first sub-pixels are as vertex angles, the two second sub-pixels arelocated at center position of the adjacent two sides of the firstvirtual rectangle, and each of the two first sub-pixels is adjacent toeach of the two second sub-pixels and one of the two first sub-pixels islocated at the center position of the first virtual rectangle and theother is located at a vertex angle position of the first virtualrectangle. And four second virtual rectangles are formed a first virtualrectangle. Compared with the pixel arrangement structure of the relatedart, such pixel arrangement manner can make the first sub-pixel, thesecond sub-pixel and the third sub-pixel closely arranged under the sameprocess condition. Thereby under the condition that the minimumsub-pixel interval is satisfied, the area of the single sub-pixel isincreased as much as possible, thereby reducing the drive current of thedisplay means and increasing the lifetime of the display means.

Moreover, arranging the third sub-pixel in a long strip shape isbeneficial to enlarge the area of the second sub-pixel, thereby thesub-pixel with lower luminous efficiency in the display panel can be setas the second sub-pixel. In addition, the two ends of the long strip aresymmetrical designed, which can reduce the pattern complexity of theevaporation mask plate, thereby simplifying the pattern compositionprocess.

Understandably, those skilled in the art can make various changes andmodifications to the present disclosure without departing from thespirit and the scope of the present disclosure. Thus, if these changesand the modifications of the present disclosure belong to the scope ofthe claims of the present disclosure and equivalent technologiesthereof, then the present disclosure is also intended to include thechanges and the modifications.

1. An organic light emitting diode display panel, comprising: aplurality of first sub-pixels, a plurality of second sub-pixels, and aplurality of third sub-pixels, wherein: respective positions of thepluralities of first, second, and third sub-pixels are not overlappedwith each other; the plurality of first sub-pixels and the plurality ofsecond sub-pixels are arranged alternately in a row along a firstdirection; the plurality of first sub-pixels and the plurality of secondsub-pixels are arranged in a column alternately along a seconddirection; the plurality of third sub-pixels are arranged in rows andcolumns along the first direction and the second direction respectively;at least one of the plurality of third sub-pixels is adjacent to twofirst sub-pixels and adjacent to two second sub-pixels, and the firstdirection is approximately perpendicular to the second direction; and atleast one first sub-pixel is adjacent to four third sub-pixels and isprovided with at least four sides facing the four third sub-pixels, theat least four sides of the at least one first sub-pixel are respectivelyconcaved in a direction away from the four third sub-pixels, and a shapeof each of the four third sub-pixels is configured to protrude in adirection close to a concave side of the first sub-pixel that the thirdsub-pixels faces.
 2. The organic light emitting diode display panelaccording to claim 1, wherein a ratio of a maximum distance to a minimumdistance is in a range of 1-1.5, the maximum distance and the minimumdistance are between opposite sides of a third sub-pixel and an adjacentfirst sub-pixel respectively, or the maximum distance and the minimumdistance are between opposite sides of the third sub-pixel and anadjacent second sub-pixel.
 3. The organic light emitting diode displaypanel according to claim 1, wherein a center of a third sub-pixel islocated at an intersection of a line connecting centers of adjacent twofirst sub-pixels and a line connecting centers of adjacent two secondsub-pixels.
 4. The organic light emitting diode display panel accordingto claim 1, wherein a size of the third sub-pixel in a direction inwhich two adjacent first sub-pixel are arranged is greater than a sizeof the third sub-pixel in a direction in which two adjacent secondsub-pixel are arranged.
 5. The organic light emitting diode displaypanel according to claim 1, wherein: a first ratio exists between aminimum distance D1 and a minimum distance D2, the minimum distance D1is between opposite sides of a third sub-pixel and an adjacent firstsub-pixel, and the minimum distance D2 is between opposite sides of thethird sub-pixel and an adjacent second sub-pixel; a second ratio existsbetween the minimum distance D1 and a minimum distance D3, the minimumdistance D3 is between opposite sides of the first sub-pixel and anadjacent second sub-pixel; a third ratio exists between the minimumdistance D2 and the minimum distance D3; and the first ratio, the secondratio, and the third ratio are each in a range of 0.8-1.2.
 6. Theorganic light emitting diode display panel according to claim 1, whereinan end portion of a protruding portion of a third sub-pixel is in ashape of arc or trapezoid.
 7. The organic light emitting diode displaypanel according to claim 1, wherein at least one of concaved sides ofthe first sub-pixel is matched with a protruding portion of a thirdsub-pixel.
 8. The organic light emitting diode display panel accordingto claim 1, wherein at least part of the third sub-pixels in theplurality of third sub-pixels are configured to have same light-emittingarea.
 9. The organic light emitting diode display panel according toclaim 1, wherein an area of each of the second sub-pixels is larger thanan area of each of the first sub-pixels and an area of each of the thirdsub-pixels, respectively.
 10. The organic light emitting diode displaypanel according to claim 1, wherein the opposite sides of a thirdsub-pixel and adjacent first sub-pixels are at least partially parallelto each other; and the opposite sides of the third sub-pixel andadjacent second sub-pixels are at least partially parallel to eachother.
 11. The organic light emitting diode display panel according toclaim 1, wherein at least one of a shape of a second sub-pixel and ashape of the first sub-pixel comprises four vertex angles, each of thefour vertex angles is approximately 90°.
 12. The organic light emittingdiode display panel according to claim 1, wherein: the organic lightemitting diode display panel further comprises a second sub-pixel and athird sub-pixel; the first subpixel is a red sub-pixel; the secondsub-pixel is a blue sub-pixel; the third sub-pixel is a green sub-pixel;an area of one blue sub-pixel is larger than an area of one redsub-pixel, and the area of one red sub-pixel is larger than an area ofone green sub-pixel; or the area of one blue sub-pixel is larger thanthe area of one green sub-pixel, and the area of one green sub-pixel islarger than the area of one red sub-pixel.
 13. The organic lightemitting diode display panel according to claim 12, wherein at least oneof the following conditions are satisfied: the area of each thirdsub-pixel is the same, and a shape of each third sub-pixel is the same;the area of each first sub-pixel is the same, and a shape of each firstsub-pixel is the same; and the area of each second sub-pixel is thesame, and a shape of each second sub-pixel
 14. The organic lightemitting diode display panel according to claim 1, wherein a directionin which two adjacent first sub-pixels are arranged is an extensiondirection of a third sub-pixel, wherein the third sub-pixel is a mirrorsymmetrical view in a direction perpendicular to the extension directionthereof
 15. The organic light emitting diode display panel according toclaim 1, wherein: one of the plurality of first sub-pixels is located ata center position of a first virtual rectangle, and four of theplurality of first sub-pixels are located at four vertex angle positionsof the first virtual rectangle, respectively; four of the plurality ofsecond sub-pixels are located at center positions of four sides of thefirst virtual rectangle, respectively; the first virtual rectangle isprovided with a first diagonal line and a second diagonal line; and thefirst virtual rectangle is provided with two third sub-pixelsdistributed along the first diagonal line and two third sub-pixelsdistributed along the second diagonal line.
 16. The organic lightemitting diode display panel according to claim 15, wherein the twothird sub-pixels distributed along the first diagonal line are extendedalong the first diagonal line respectively, and the two third sub-pixelsare mirrored symmetrically with respect to the second diagonal line. 17.The organic light emitting diode display panel according to claim 16,wherein the two third sub-pixels distributed along the second diagonalline are extended along the second diagonal line respectively, and thetwo third sub-pixels are mirrored symmetrically with respect to thefirst diagonal line.
 18. The organic light emitting diode display panelaccording to claim 1, wherein a closest distance between the firstsub-pixel and each of the four third sub-pixels which are adjacent tothe first sub-pixel is approximately the same.
 19. An organic lightemitting diode display panel, comprising: a plurality of firstsub-pixels, a plurality of second sub-pixels, and a plurality of thirdsub-pixels, wherein: respective positions of the pluralities of first,second, and third sub-pixels are not overlapped with each other; theplurality of first sub-pixels and the plurality of second sub-pixels arearranged alternately in a row along a first direction; the plurality offirst sub-pixels and the plurality of second sub-pixels are arranged ina column alternately along a second direction; the plurality of thirdsub-pixels are arranged in rows and columns along the first directionand the second direction respectively; at least one of the plurality ofthird sub-pixels is adjacent to two first sub-pixels and adjacent to twosecond sub-pixels, and the first direction is approximatelyperpendicular to the second direction; a size of a third sub-pixel in adirection in which two adjacent first sub-pixel are arranged is greaterthan a size of the third sub-pixel in a direction in which two adjacentsecond sub-pixel are arranged ; a first ratio exists between a minimumdistance D1 and a minimum distance D2, the minimum distance D1 isbetween opposite sides of a third sub-pixel and an adjacent firstsub-pixel, and the minimum distance D2 is between opposite sides of thethird sub-pixel and an adjacent second sub-pixel; a second ratio existsbetween the minimum distance D1 and a minimum distance D3, the minimumdistance D3 is between opposite sides of the first sub-pixel and anadjacent second sub-pixel; a third ratio exists between the minimumdistance D2 and the minimum distance D3; and the first ratio, the secondratio, and the third ratio are each in a range of 0.8-1.2.
 20. Theorganic light emitting diode display panel according to claim 19,wherein a ratio of a maximum distance to a minimum distance is in arange of 1-1.5, the maximum distance and the minimum distance arebetween opposite sides of a third sub-pixel and an adjacent firstsub-pixel respectively, or the maximum distance and the minimum distanceare between opposite sides of the third sub-pixel and an adjacent secondsub-pixel.